If we can make a general-purpose computer with just a touchscreen for tactile input that fits in your pocket in the early 21st century, then in the imaginary 23rd century they can make a weapon which fits in your pocket that can wipe out a battalion, that never misses, and which has a few deceptively simple tactile controls.

I like the raised screen - a lot. Additionally, the idea of AI that assists in "double-click" aiming might not have been thought of in 1967, but it's perfectly in line with what we know today, and meshes well enough with what we saw on the show, in terms of type-1 usage.

The bigger problem in terms of the sight, whatever its nature, is: what happened to it when the type-2 was used?

__________________“A life is like a garden. Perfect moments can be had, but not preserved, except in memory. LLAP” — Leonard Nimoy (1931-2015)